Java Requires Chilkat v11.4.0+

Eval JavaScript Returning String

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Demonstrates getting the completion value of a JavaScript that returns a string. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Js;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example demonstrates getting the completion value of a script,
        // where the last evaluated expression is a string.

        // The Javascript run in this example is shown below.

        // Load the JavaScript from a file.
        StringBuilder sbScript = new StringBuilder();
        try {
            sbScript.loadFile("js_eval_return_string.js", "utf-8");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        Js js = new Js();
        JsonObject result = new JsonObject();

        // Run the JavaScript
        // Eval returns the completion value of the script. This is generally the value of the last evaluated expression.
        // In this case, the last evaluated expression is a string.
        try {
            js.eval(sbScript, result);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        result.setEmitCompact(false);
        System.out.println(result.emit());

        // Output:

        // {
        //   "type": "string",
        //   "value": "Ready for Chilkat.Js"
        // }
    }
}

JavaScript

var status = "Ready";
var system = "Chilkat.Js";

// The last statement is an expression
status + " for " + system;